Add basic fitness for genetic algorithm

genetical_algorithm.py

@@ -0,0 +1,63 @@
+
+def evaluate_values(fuel, water, feritizer, seeds, fields_with_plants, k):
+    fields_to_sow = 0
+    fields_to_water = 0
+    fields_to_feritize = 0
+    fields_to_harvest = 0
+    width = settings.Field.horizontal_count()
+    height = settings.Field.vertical_count()
+    ans = 0
+    for i in range(width):
+        for j in range(height):
+            if fields_with_plants[i][j] == 'potato_empty' or fields_with_plants[i][j] == 'carrot_empty' or \
+                    fields_with_plants[i][j] == 'wheat_empty':
+                fields_to_sow += 1
+            elif fields_with_plants[i][j] == 'potato_sow' or fields_with_plants[i][j] == 'carrot_sow' or \
+                    fields_with_plants[i][j] == 'wheat_sow':
+                fields_to_water += 1
+            elif fields_with_plants[i][j] == 'potato_watered' or fields_with_plants[i][j] == 'carrot_watered' or \
+                    fields_with_plants[i][j] == 'wheat_watered':
+                fields_to_feritize += 1
+            elif fields_with_plants[i][j] == 'potato_feritized' or fields_with_plants[i][j] == 'carrot_feritized' or \
+                    fields_with_plants[i][j] == 'wheat_feritized':
+                fields_to_harvest += 1
+    t = tree.treelearn()
+    if water < fields_to_water or feritizer < fields_to_feritize or seeds < fields_to_sow or fuel < 1000:
+        return 5
+    if tree.make_decision(t, fuel, water, feritizer, 0, 0, 0, 0, 0, seeds):
+        return 5
+    if fuel > 2000:
+        return 0
+    if k == 0:
+        ans += (fuel) / 30 - fields_to_harvest
+        ans += water - fields_to_water
+        ans += feritizer - fields_to_feritize - fields_to_water
+        ans += seeds - fields_to_harvest - fields_to_sow
+    if k == 1:
+        ans += water - fields_to_water
+        ans += feritizer - fields_to_water - fields_to_feritize
+        ans += seeds - fields_to_sow
+        ans += (fuel - 1100) / 30 - fields_to_harvest
+    if k == 2:
+        ans += feritizer - fields_to_feritize
+        ans += seeds - fields_to_sow
+        ans += (fuel - 800) / 15 - fields_to_feritize - fields_to_harvest
+        ans += water - fields_to_water - fields_to_sow
+    if k == 3:
+        ans += seeds - fields_to_sow
+        ans += (fuel - 400) / 30 - fields_to_harvest
+        ans += water - fields_to_water - fields_to_sow
+        ans += feritizer - fields_to_feritize - fields_to_water - fields_to_sow
+    return ans
+
+def fitness(solution, fields_plants, k):
+    fuel = solution[0]
+    water = solution[1]
+    feritizer = solution[2]
+    seeds = solution[3]
+    if fuel / 30 + water + feritizer + seeds > 200:
+        ans = 0
+    else:
+        ans = evaluate_values(fuel, water, feritizer, seeds, fields_plants, k)
+    return ans
+